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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include "logrecord.hxx"
#include "loggerconfig.hxx"
#include <com/sun/star/logging/XLogger.hpp>
#include <com/sun/star/logging/LogLevel.hpp>
#include <com/sun/star/uno/XComponentContext.hpp>
#include <com/sun/star/lang/XServiceInfo.hpp>
#include <com/sun/star/logging/XLoggerPool.hpp>
#include <cppuhelper/basemutex.hxx>
#include <comphelper/interfacecontainer2.hxx>
#include <cppuhelper/implbase.hxx>
#include <cppuhelper/supportsservice.hxx>
#include <cppuhelper/weakref.hxx>
#include <rtl/ref.hxx>
#include <map>
namespace logging
{
using ::com::sun::star::logging::XLogger;
using ::com::sun::star::uno::Reference;
using ::com::sun::star::uno::XComponentContext;
using ::com::sun::star::lang::XServiceInfo;
using ::com::sun::star::uno::RuntimeException;
using ::com::sun::star::uno::Sequence;
using ::com::sun::star::uno::XInterface;
using ::com::sun::star::uno::WeakReference;
using ::com::sun::star::logging::XLogHandler;
using ::com::sun::star::logging::LogRecord;
class EventLogger : public cppu::BaseMutex,
public cppu::WeakImplHelper<css::logging::XLogger>
{
private:
comphelper::OInterfaceContainerHelper2 m_aHandlers;
oslInterlockedCount m_nEventNumber;
// <attributes>
sal_Int32 m_nLogLevel;
OUString m_sName;
// </attributes>
public:
EventLogger( const Reference< XComponentContext >& _rxContext, const OUString& _rName );
// XLogger
virtual OUString SAL_CALL getName() throw (RuntimeException, std::exception) override;
virtual ::sal_Int32 SAL_CALL getLevel() throw (RuntimeException, std::exception) override;
virtual void SAL_CALL setLevel( ::sal_Int32 _level ) throw (RuntimeException, std::exception) override;
virtual void SAL_CALL addLogHandler( const Reference< XLogHandler >& LogHandler ) throw (RuntimeException, std::exception) override;
virtual void SAL_CALL removeLogHandler( const Reference< XLogHandler >& LogHandler ) throw (RuntimeException, std::exception) override;
virtual sal_Bool SAL_CALL isLoggable( ::sal_Int32 _nLevel ) throw (RuntimeException, std::exception) override;
virtual void SAL_CALL log( ::sal_Int32 Level, const OUString& Message ) throw (RuntimeException, std::exception) override;
virtual void SAL_CALL logp( ::sal_Int32 Level, const OUString& SourceClass, const OUString& SourceMethod, const OUString& Message ) throw (RuntimeException, std::exception) override;
protected:
virtual ~EventLogger() override;
private:
/** logs the given log record
*/
void impl_ts_logEvent_nothrow( const LogRecord& _rRecord );
/** non-threadsafe impl-version of isLoggable
*/
bool impl_nts_isLoggable_nothrow( ::sal_Int32 _nLevel );
};
/** administrates a pool of XLogger instances, where a logger is keyed by its name,
and subsequent requests for a logger with the same name return the same instance.
*/
class LoggerPool : public cppu::WeakImplHelper<css::logging::XLoggerPool, XServiceInfo>
{
private:
::osl::Mutex m_aMutex;
Reference<XComponentContext> m_xContext;
std::map< OUString, WeakReference<XLogger> > m_aLoggerMap;
public:
explicit LoggerPool( const Reference< XComponentContext >& _rxContext );
// XServiceInfo
virtual OUString SAL_CALL getImplementationName() throw(RuntimeException, std::exception) override;
virtual sal_Bool SAL_CALL supportsService( const OUString& _rServiceName ) throw(RuntimeException, std::exception) override;
virtual Sequence< OUString > SAL_CALL getSupportedServiceNames() throw(RuntimeException, std::exception) override;
// XLoggerPool
virtual Reference< XLogger > SAL_CALL getNamedLogger( const OUString& Name ) throw (RuntimeException, std::exception) override;
virtual Reference< XLogger > SAL_CALL getDefaultLogger( ) throw (RuntimeException, std::exception) override;
};
EventLogger::EventLogger( const Reference< XComponentContext >& _rxContext, const OUString& _rName )
:m_aHandlers( m_aMutex )
,m_nEventNumber( 0 )
,m_nLogLevel( css::logging::LogLevel::OFF )
,m_sName( _rName )
{
osl_atomic_increment( &m_refCount );
{
initializeLoggerFromConfiguration( _rxContext, this );
}
osl_atomic_decrement( &m_refCount );
}
EventLogger::~EventLogger()
{
}
bool EventLogger::impl_nts_isLoggable_nothrow( ::sal_Int32 _nLevel )
{
if ( _nLevel < m_nLogLevel )
return false;
if ( !m_aHandlers.getLength() )
return false;
return true;
}
void EventLogger::impl_ts_logEvent_nothrow( const LogRecord& _rRecord )
{
::osl::MutexGuard aGuard( m_aMutex );
if ( !impl_nts_isLoggable_nothrow( _rRecord.Level ) )
return;
m_aHandlers.forEach< XLogHandler >(
[&_rRecord] (Reference<XLogHandler> const& rxListener) { rxListener->publish(_rRecord); } );
m_aHandlers.forEach< XLogHandler >(
[] (Reference<XLogHandler> const& rxListener) { rxListener->flush(); } );
}
OUString SAL_CALL EventLogger::getName() throw (RuntimeException, std::exception)
{
return m_sName;
}
::sal_Int32 SAL_CALL EventLogger::getLevel() throw (RuntimeException, std::exception)
{
::osl::MutexGuard aGuard( m_aMutex );
return m_nLogLevel;
}
void SAL_CALL EventLogger::setLevel( ::sal_Int32 _level ) throw (RuntimeException, std::exception)
{
::osl::MutexGuard aGuard( m_aMutex );
m_nLogLevel = _level;
}
void SAL_CALL EventLogger::addLogHandler( const Reference< XLogHandler >& _rxLogHandler ) throw (RuntimeException, std::exception)
{
if ( _rxLogHandler.is() )
m_aHandlers.addInterface( _rxLogHandler );
}
void SAL_CALL EventLogger::removeLogHandler( const Reference< XLogHandler >& _rxLogHandler ) throw (RuntimeException, std::exception)
{
if ( _rxLogHandler.is() )
m_aHandlers.removeInterface( _rxLogHandler );
}
sal_Bool SAL_CALL EventLogger::isLoggable( ::sal_Int32 _nLevel ) throw (RuntimeException, std::exception)
{
::osl::MutexGuard aGuard( m_aMutex );
return impl_nts_isLoggable_nothrow( _nLevel );
}
void SAL_CALL EventLogger::log( ::sal_Int32 _nLevel, const OUString& _rMessage ) throw (RuntimeException, std::exception)
{
impl_ts_logEvent_nothrow( createLogRecord(
m_sName,
_rMessage,
_nLevel,
osl_atomic_increment( &m_nEventNumber )
) );
}
void SAL_CALL EventLogger::logp( ::sal_Int32 _nLevel, const OUString& _rSourceClass, const OUString& _rSourceMethod, const OUString& _rMessage ) throw (RuntimeException, std::exception)
{
impl_ts_logEvent_nothrow( createLogRecord(
m_sName,
_rSourceClass,
_rSourceMethod,
_rMessage,
_nLevel,
osl_atomic_increment( &m_nEventNumber )
) );
}
LoggerPool::LoggerPool( const Reference< XComponentContext >& _rxContext )
:m_xContext( _rxContext )
{
}
OUString SAL_CALL LoggerPool::getImplementationName() throw(RuntimeException, std::exception)
{
return OUString("com.sun.star.comp.extensions.LoggerPool");
}
sal_Bool SAL_CALL LoggerPool::supportsService( const OUString& _rServiceName ) throw(RuntimeException, std::exception)
{
return cppu::supportsService(this, _rServiceName);
}
Sequence< OUString > SAL_CALL LoggerPool::getSupportedServiceNames() throw(RuntimeException, std::exception)
{
return { "com.sun.star.logging.LoggerPool" };
}
Reference< XLogger > SAL_CALL LoggerPool::getNamedLogger( const OUString& _rName ) throw (RuntimeException, std::exception)
{
::osl::MutexGuard aGuard( m_aMutex );
WeakReference< XLogger >& rLogger( m_aLoggerMap[ _rName ] );
Reference< XLogger > xLogger( rLogger );
if ( !xLogger.is() )
{
// never requested before, or already dead
xLogger = new EventLogger( m_xContext, _rName );
rLogger = xLogger;
}
return xLogger;
}
Reference< XLogger > SAL_CALL LoggerPool::getDefaultLogger( ) throw (RuntimeException, std::exception)
{
return getNamedLogger( "org.openoffice.logging.DefaultLogger" );
}
} // namespace logging
namespace {
struct Instance {
explicit Instance(
css::uno::Reference<css::uno::XComponentContext> const & context):
instance(static_cast<cppu::OWeakObject *>(new logging::LoggerPool(context)))
{}
rtl::Reference<css::uno::XInterface> instance;
};
struct Singleton:
public rtl::StaticWithArg<
Instance, css::uno::Reference<css::uno::XComponentContext>, Singleton>
{};
}
extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface * SAL_CALL
com_sun_star_comp_extensions_LoggerPool(
css::uno::XComponentContext *context,
css::uno::Sequence<css::uno::Any> const &)
{
return cppu::acquire(static_cast<cppu::OWeakObject *>(
Singleton::get(context).instance.get()));
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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